Hello, Cisco Community!I’m really happy to share that I’ll be hosting the Cisco Community Lab Series, a brand-new hands-on learning journey designed to help you build practical networking skills step by step.Every Thursday at 8 PM EST, I’ll post a ne...
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Forum Posts
Hey folks I've encountered a strange issue when I try to configure a ip sla with IPv6. I want to track the IPv6 default route for a multi-homed network. The device I'm using is a WS-C3650-48TQ running 03.07.02E. The configuration looks like that: ! ...
hi, to be more specific, can Dynamic ARP Inspection be configured to prevent invalid destination IP and MAC addresses in ARP reply !? like: there is an ARP request with: source IP: 192.168.1.100 Source MAC: aaaa.aaaa.aaaa the hacker reply but chan...
Hi guys,I bet lots of you are about to sit in front of TV for super bowl as I'm about to. However, I really want to be able to troubleshoot this CCNA lab problem before that. Help me if you can, please. So here is the problem: In the following topolo...
Resolved! Ping Unreachable?
U.U.U There is only one meaning to ping unreachable command that we can get to gateway but we can't get outside this subnet? right? thanks
Hi all, My router is connected to L2 switch and then to 2 gateway/CE mpls router. As shown below So I have 2 gateway (10.10.10.2, 10.10.10.3) for my overseas office network -> 192.168.30.0/24. As I am inexperience, I want the setup to be as sim...
Hi Team, Cisco TelePresence 3100 system is there and we are facing the problem. While on the phone continuously showing call services are stopped. Can someone verify why this error we are getting. Kindly find the attached snapshot of the error. Reg...
Hi Guys, Struggling to find the best way to do this. We have a dual Sup2E environment for a N7k10 and run a version of 6.2 How do we go about upgrading to 7.3? From what I can find, we cant use ISSU? So what do we do? Thanks L
The subject is cable modems and FWs that are NOT in an HA set up.. Imagine I have a pair of FWs that are NOT in an HA set up because they cant be ...for whatever reason. So, I have cable modem internet access and the 2 FWs are connected to that one c...
Resolved! 3120 Switch Stack Upgrade
Hey, I've been reading through examples on how to use the stack configuration and how upgrades are supposed to auto-magically upgrade when a member has a different IOS version than than stack master. Am I doing something wrong in thinking the master...
Hi Team, If someone can help on this I need to create a point to point connection from a Nexus 7000 to a Fortinet. I know how to do it on the fortinet but not familiar with NK7000. The reason been is that I need to redistribute a static route that I...
hi All, We have a switch at client side. Client compliant that switch was not being accessed. When I visited the site and connected my consol with switch then I founded the following error as: Unexpected exception to CPUvector 0, PC = 201CAB8 : U...
I am in beginning in CCNA... My teacher told me that, In one network Same IP or Same MAC ID not connect in network.... But its working ..... If i get your response, i can show you..... Sorry, For my bad english....
I have a new data center deployment consisting of Nexus 7710s and I’m trying to solidify my power requirements to Facilities. We will deploy power supply redundancy (N+1) along with power grid redundancy. I am trying to derive solid current/amperage...
Hello everybody, How can I ask RSSI equipment using telnet interface? Can you show an example with screenshoots or sth ? Thanks
Hi Experts, We have two LAN networks. One for internal server and one for DMZ servers.We need to create backup VLAN, could you please recommend if there is a best practices, moreover should we create two backup VLAN -one for internal servers and one...
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